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Abstract Detail



Systematics Section/ASPT

Won, Hyosig [1], Lim, Chang Kun [2].

Phylogeeographic study of Iris leavigata.

Iris laevigata has been a major resource of Japanese water garden and naturallaly distributed in cooler swampy areas in NE Asia, mainly in Japan, NE China, Far Eastern Russia, and Korea. In South Korea, I. laevigata can be found only from two areas on the eastern coast and presumed as relic populations after retreat of glaciation. To understand their phylogeographic relationships, we have analyzed cp trnK intron-matK region and nuclear rDNA sequences of NE Asian I. laevigata populations. From the cp trnK intron-matK region, we found three halpotypes which is divided into three regional groups -Japan, Korea+NE China, and China+Russia groups. While nuclear rDNA sequences identified two regional groups and populations probably originated from hybridization between the two groups. The one group is consisted of NE China and Russia populations, while the other from Honshu populations of Japan. The hybrid populations show exact overlap of the two sequence types and are consisted of two Korean populations and two Hokkaido populations of Japan. This geographic pattern suggests that there exist at least two separate lineages of I. laevigata, one in NE China and FE Russia, the other in Japan archipelago, and these two lineages may have contacted and formed hybrid zones - one in Korean peninsular and the other in Hokkaido.


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1 - Daegu University, Department of Biological Science, 201 Daegudaero, Jillyang, Gyungsan, Gyungbuk, 712-714, South Korea
2 - Daegu University, Dept. of Biological Science, 201 Daegudaero, Jillyang, Gyungsan, Gyungbuk, 712-714, South Korea

Keywords:
Iris laevigata
hybrid zone
Phylogeography
nrITS
cp trnK intron-matK.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Hall D/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 5:30 PM
Number: PSY009
Abstract ID:977
Candidate for Awards:None


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